Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC · HackerPapers discussions

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC — mentioned by losvedir

Mon, 11 Jan 2021 20:28:24 GMT

That's a good question. You're right that a random grad student in a lab can't replicate, e.g., the discovery of the Higgs boson! However, at least for the Higgs (and I believe this is standard for most such large experiments), there were actually two different groups using two different apparatuses, both at CERN. There was the CMS[0] detector and ATLAS[1] detector, used and analyzed by two different groups of physicists, resulting in two papers[2,3], published on the same day. [0] https://en.wikipedia.org/wiki/Compact_Muon_Solenoid [1] https://en.wikipedia.org/wiki/ATLAS_experiment [2]…

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Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC — mentioned by nonbel

Thu, 28 Dec 2017 16:37:27 GMT

1) Typos fixed. 2) "That's not true. You can see plots in the 2011 and 2012 papers that give these calculations as a function of mass." - Can you explain what you mean via figure 1 in this paper: https://arxiv.org/abs/1207.7235 ? - I don't see the relevance of calculating p-values as a function of mass to my comment 3) "Not withstanding the fact that there's no Higgsless theory to do calculations for the background" - Then what model did they use to calculate the p-values? (I do not know the details but am fairly certain it is one where there is no Higgs boson at any given mass) 4) "Also, if…

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Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC — mentioned by cygx

Sat, 04 Aug 2012 08:20:47 GMT

Better link to the arXiv abstract, ie http://arxiv.org/abs/1207.7214 You also did not link the accompanying paper from CMS http://arxiv.org/abs/1207.7235

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Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC — mentioned by dictus

Sat, 04 Aug 2012 05:40:42 GMT

That's the hope. New result from the Tevatron just showed that this thing appears to decay to matter, too (not just gauge bosons) http://arxiv.org/abs/hep-ex/0512051. It is looking very Standard Model like. An outside hope is that it doesn't couple to leptons. The CMS Higgs to tau tau result hinted as much, but it is very preliminary, unconfirmed by ATLAS. Measuring Branching Ratios (the rates that the new particle decays to different final states) will be a test of how Standard Model-like this new particle is. Here is CMS' paper: http://arxiv.org/abs/arXiv:1207.7235

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